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181 results on '"Tang, Yusheng"'

18. Reinforced Fibers

Author

Tang, Lin, primary, Tang, Yusheng, additional, Zhang, Jiani, additional, and Gu, Junwei, additional

Published
2024
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22. Research Progress on Clean Disposal and Recovery Technologies of Typical Hazardous Solid Waste from Aluminum Electrolysis Process.

Author

TANG Yusheng, YANG Wanzhang, CHEN Bensong, MA Lutong, QIU Zhesheng, and LIN Yan

Subjects
SOLID waste, ELECTROLYSIS, WASTE recycling, ALUMINUM, POLLUTION, HAZARDOUS wastes, SOLID waste management
Abstract

Overhaul slag, aluminum ash, and carbon slag produced by the electrolytic aluminum process are typical hazardous wastes, which contain a large amount of valuable elements such as A1 and F, and have the dual attributes of environmental pollution and resource recovery. The classification and characteristics of typical hazardous wastes generated from aluminum electrolysis are summarized. Furthermore, the research progress of green and clean recycling methods for typical hazardous wastes in aluminum electrolysis is described. The advantages and disadvantages of flotation and chemical leaching methods are emphatically introduced. Finally, the development trend and direction of recycling technologies for typical hazardous waste in aluminum electrolysis are proposed. [ABSTRACT FROM AUTHOR]

Published
2023
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25. Flexible and Robust Functionalized Boron Nitride/Poly(p-Phenylene Benzobisoxazole) Nanocomposite Paper with High Thermal Conductivity and Outstanding Electrical Insulation.

Author

Tang, Lin, Ruan, Kunpeng, Liu, Xi, Tang, Yusheng, Zhang, Yali, and Gu, Junwei

Subjects
THERMAL conductivity, ELECTRIC insulators & insulation, ELECTRIC conductivity, NANOCOMPOSITE materials, THERMAL stability, BORON nitride, THERMAL insulation
Abstract

Highlights: m-BN/PNF nanocomposite paper with nacre-mimetic layered structures prepared via sol–gel film transformation approach presents excellent thermal conductivity, incredible electrical insulation, outstanding mechanical property and thermal stability. When the mass fraction of m-BN is 50 wt%, m-BN/PNF nanocomposite paper exhibits excellent thermal conductivity and electrical insulation. The λ∥ and λ⊥ are 9.68 and 0.84 W m−1 K−1, and the volume resistivity and breakdown strength are as high as 2.3 × 1015 Ω cm and 324.2 kV mm−1, respectively. The m-BN/PNF nanocomposite paper with 50 wt% m-BN also presents outstanding mechanical properties (tensile strength of 193.6 MPa) and thermal stability (thermal decomposition temperature of 640 °C). With the rapid development of 5G information technology, thermal conductivity/dissipation problems of highly integrated electronic devices and electrical equipment are becoming prominent. In this work, "high-temperature solid-phase & diazonium salt decomposition" method is carried out to prepare benzidine-functionalized boron nitride (m-BN). Subsequently, m-BN/poly(p-phenylene benzobisoxazole) nanofiber (PNF) nanocomposite paper with nacre-mimetic layered structures is prepared via sol–gel film transformation approach. The obtained m-BN/PNF nanocomposite paper with 50 wt% m-BN presents excellent thermal conductivity, incredible electrical insulation, outstanding mechanical properties and thermal stability, due to the construction of extensive hydrogen bonds and π–π interactions between m-BN and PNF, and stable nacre-mimetic layered structures. Its λ∥ and λ⊥ are 9.68 and 0.84 W m−1 K−1, and the volume resistivity and breakdown strength are as high as 2.3 × 1015 Ω cm and 324.2 kV mm−1, respectively. Besides, it also presents extremely high tensile strength of 193.6 MPa and thermal decomposition temperature of 640 °C, showing a broad application prospect in high-end thermal management fields such as electronic devices and electrical equipment. [ABSTRACT FROM AUTHOR]

Published
2023
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